Singapore << >> Kuala Lumpur

At this moment I am searching for information to travel between Singapore and Kuala Lumpur via public transport. Nowadays, most of the peoples choose to take flight if able to get a low air fares. However, if want to take bus or train, can refer to the information below:

Train (KTMB)

To book online: https://intranet.ktmb.com.my/e-ticket/

If depart from Singapore to KL, the fare is in SGD. Therefore, it is recommended to depart from Johor (JB Sentral). JB Sentral is connected to both the CIQ and City Square by pedestrian overhead bridges. 

How to go Woodland Checkpoints?

In between Woodland Interchange <> JB Sentral, can take 950

In between Woodland Interchange <> Tampines, can take 168 / 969 

In between Woodland Checkpoints <> Bugis Queen Street (walking distance to Bugis MRT), can take CW2 / 170 / SJE. (Recommend to take CW2 as it directly go to Bugis Queen Street)

Some useful links:
http://forums.vr-zone.com/travel-talk/112060-ktm-train-guide-kl-sg-route.html

http://felixker.com/daily-rants/travelling-from-singapore-to-johor-bahru-by-bus/

http://en.wikipedia.org/wiki/Woodlands_Regional_Bus_Interchange

http://www.guidegecko.com/singapore/kampong-glam-bus-terminals/queen-street-bus-terminal/p,608167740

http://www.zuaas.com/goodinfo/travel_visa/page-2